Global warming could be similar across ecosystemsJanuary 22nd, 2012 - 2:57 pm ICT by IANS
London, Jan 22 (IANS) The impact of global warming could be similar across ecosystems, regardless of local environmental conditions and species.
A team from Queen Mary’s School of Biological and Chemical Sciences, which went to Iceland to study a set of geothermally-heated streams, came up with these findings.
The streams provided them with a unique environment to isolate the effects of temperature from other confounding variables found in nature, the journal Global Change Biology reports.
Explained Queen Mary’s Daniel Perkins who led the study: “The streams in Iceland are all very similar, in terms of their physical and chemical environment, but maintain very different temperatures to each other all year round.
“This enabled us to explore how temperature, both past and present, affects the rate at which respiration responds to temperature in ecosystems,” he said in a statement.
Perkins said when the team exposed the organisms found in streams to a range of temperatures, “the rate at which carbon was respired increased with temperature as expected, but surprisingly the rate of increase was consistent across streams”.
Said co-author Gabriel Yvon-Durocher, also from Queen Mary: “Our findings demonstrate that the intrinsic temperature sensitivity of respiration is the same across a diverse range of organisms, adapted to markedly different temperatures.
“This result is important because it will help us build more accurate models to predict how rates of carbon dioxide emission from ecosystem will respond to the temperature increases forecast in the coming decades.”
- Aquatic ecosystems release more carbon than land - Jun 22, 2012
- Russia and Iceland sign geothermal energy deal - Oct 24, 2011
- Alaska wildfire may impact climate - Jul 29, 2011
- Unknown species unravelled in Antarctica's hot springs - Jan 04, 2012
- Experts study black carbon, tropospheric ozone's role in climate change - Feb 21, 2011
- NASA's ICESCAPE to study impacts of climate change on Arctic - Jun 09, 2010
- Scaring grasshoppers could hit the whole of ecosystem - Jun 15, 2012
- New pondlife on nature reserve discovered - Jan 13, 2010
- Hot springs of volcanic crater in Siberia reveals ancient ecology - Apr 27, 2011
- Uneven local conditions more harmful to biodiversity than slower shifts in climate - Jan 16, 2010
- Sensor 'could protect first responders against chemical hazards' - May 02, 2011
- Tripura marks World Environment Day - Jun 05, 2010
- NASA to undertake new mission to study arctic climate change - Jun 09, 2010
- Killer stress? Study on insects could help research - Oct 28, 2011
- How 'bees see world' - Dec 11, 2010
Tags: accurate models, carbon dioxide emission, chemical environment, chemical sciences, co author, confounding variables, decades, durocher, environmental conditions, global change biology, global warming, london jan, organisms, perkins, queen mary, respiration, streams, temperature sensitivity, temperatures, yvon